staminal tube usually subglobose, obovoid, or cup-shaped with apex incurved, apical margin entire, crenate, or shallowly lobed;
英
美
雄蕊管通常近球形,倒卵球形,或杯状具弯曲先端,顶端边缘全缘,具圆齿,或浅裂;
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